Gpredict is a real time satellite tracking and orbit prediction program for the Linux desktop. It uses the SGP4/SDP4 propagation algorithms together with NORAD two-line element sets (TLE).

Some core features of Gpredict include:

* Tracking of a large number of satellites only limited by the physical memory and processing power of the computer * Display the tracking data in lists, maps, polar plots and any combination of these * Have many modules open at the same either in a notebook or in their own windows. The modules can also run in full-screen mode * You can use many ground stations * Predict upcoming passes * Gpredict can run in real-time, simulated real-time (fast forward and backward), and manual time control * Detailed information both the real time and non-real time modes * Doppler tuning of radios via Hamlib rigctld * Antenna rotator control via Hamlib rotctld